drm: renesas: rz-du: Add Kconfig dependency between RZG2L_DU and RZG2L_MIPI_DSI

Add Kconfig dependency between RZG2L_DU and RZG2L_MIPI_DSI, so that
DSI module has functional dependency on DU. It is similar way that
the R-Car MIPI DSI encoder is handled.

While at it drop ARCH_RENESAS dependency as DRM_RZG2L_DU depend on
ARCH_RZG2L.

Suggested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240827163727.108405-1-biju.das.jz@bp.renesas.com

diff --git a/drivers/gpu/drm/renesas/rz-du/Kconfig b/drivers/gpu/drm/renesas/rz-du/Kconfig
index 7c181724084653017a05e2efc6089e8984dd70c6..e57536fd6f4d291eb22d82bd4b03bcb5d6bde963 100644 (file)
--- a/drivers/gpu/drm/renesas/rz-du/Kconfig
+++ b/drivers/gpu/drm/renesas/rz-du/Kconfig
@@ -14,10 +14,15 @@ config DRM_RZG2L_DU
          Choose this option if you have an RZ/G2L alike chipset.
          If M is selected the module will be called rzg2l-du-drm.
 
-config DRM_RZG2L_MIPI_DSI
-       tristate "RZ/G2L MIPI DSI Encoder Support"
-       depends on DRM && DRM_BRIDGE && OF
-       depends on ARCH_RENESAS || COMPILE_TEST
-       select DRM_MIPI_DSI
+config DRM_RZG2L_USE_MIPI_DSI
+       bool "RZ/G2L MIPI DSI Encoder Support"
+       depends on DRM_BRIDGE && OF
+       depends on DRM_RZG2L_DU || COMPILE_TEST
+       default DRM_RZG2L_DU
        help
          Enable support for the RZ/G2L Display Unit embedded MIPI DSI encoders.
+
+config DRM_RZG2L_MIPI_DSI
+       def_tristate DRM_RZG2L_DU
+       depends on DRM_RZG2L_USE_MIPI_DSI
+       select DRM_MIPI_DSI